/*
 * Copyright 2015 GenerallyCloud.com
 *  
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */ 
package com.generallycloud.nio.codec.http11.future;

import com.generallycloud.nio.common.BASE64Util;
import com.generallycloud.nio.common.UUIDGenerator;
import com.generallycloud.nio.component.SocketChannelContext;

public class WebSocketUpgradeRequestFuture extends ClientHttpReadFuture {

	public WebSocketUpgradeRequestFuture(SocketChannelContext context,String url) {
		
		super(context,url, "GET");

		this.setResponseHeaders();
	}

	private void setResponseHeaders() {
		setResponseHeader("Connection", "Upgrade");
		setResponseHeader("Upgrade", "websocket");
		setResponseHeader("Sec-WebSocket-Version", "13");
		setResponseHeader("Sec-WebSocket-Key", BASE64Util.byteArrayToBase64(UUIDGenerator.random().substring(8,24).getBytes()));
		setResponseHeader("Sec-WebSocket-Extensions", "permessage-deflate; client_max_window_bits");
	}
}
